Datasheet

PIC24FV16KM204 FAMILY
DS30003030B-page 210  2013 Microchip Technology Inc.
FIGURE 19-1: 12-BIT A/D CONVERTER BLOCK DIAGRAM
Comparator
10/12-Bit SAR
VREF+
DAC
AN20
AN21
AN8
AN9
AN4
AN5
AN6
AN7
AN0
AN1
AN2
AN3
VREF-
Sample Control
S/H
AVSS
AVDD
ADC1BUF0:
ADC1BUF17
AD1CON1
AD1CON2
AD1CON3
AD1CHS
AD1CHITL
AD1CHITH
Control Logic
Data Formatting
Input MUX Control
Conversion Control
Pin Config. Control
Internal
16
VR+VR-
MUX A
VINH
VINL
VINH
VINH
VINL
VINL
VR+
V
R-
VR Select
CTMU
VBG
AD1CSSL
AD1CSSH
AVss
0.785 * V
DD
AVDD
0.215 * VDD
AD1CON5
CTMU
VBG
Temp . S e n s o r
Data Bus
MUX B
Conversion Logic